I think this might've been the first Dean/John fic I've read where John takes the initiative and I found it to be an interesting read. It's kind of sad how much Dean is willing to do for his father simply because he's his dad but that is the sort of thing that Dean does and it makes this kind of believable and helps me to not be as squicked as I thought I might be. Actually kind of really like it. You planning on writing a sequel? :)